Hino-crimson' is an evergreen azalea (Kurume hybrid) that features crimson red flowers and very small leaves on a low-growing, compact shrub that typically matures over time to 2-4 tall and to 3-5' wide. Small, single, funnel-shaped flowers (to 1 1/4" across) bloom in clusters in mid-season (May). Small glossy dark green leaves (1/2 to 1 1/4" long) are evergreen. Leaves acquire bronze tones in winter. Parents are R. 'Amoenum' x R. 'Hinode-giri'.
Once plants are established, though, you should only have to water during dry periods (2 to 3 weeks without rain).
You'll want to use a particular fertilizer composition for the different stages of your rhododendron growth. At planting time, use 10-10-6 fertilizer before you water the plant in. In early spring, the rhododendron buds swell. At this time, apply a complete 10-8-6 fertilizer.
Azaleas do well in moist, acid (pH 5.5 or so), well-drained soil with lots of organic matter, such as peat, compost, chopped leaves, or ground bark. They won't grow in heavy clay, pure sand, or alkaline soil.
According to most professional landscapers, the ideal time for pruning rhododendrons is late winter, while the plant is dormant. However, any time between the first frost in fall and the last frost in spring (while the sap is low) will work.
When in bloom, keep them at around 55-60 degrees; blooms don't last as long in warmer temperatures. Azaleas will tolerate a wide range of temperatures, from near freezing to 90º plus.
